**Sec. 23.726 - Ground load dynamic tests.**
(a) If compliance with the ground load
requirements of §§23.479 through 23.483 is shown dynamically by drop test,
one drop test must be conducted that meets §23.725 except that the drop
height must be --

(1) 2.25 times the drop height
prescribed in §23.725(a); or

(2) Sufficient to develop 1.5 times the
limit load factor.

(b) The critical landing condition for
each of the design conditions specified in §§23.479 through 23.483 must be
used for proof of strength.

[Amdt. 23-7, 34 FR 13091, Aug. 13, 1969]